Ferroli RXA-I PLUS Series User Manual (English)

Questions and Answers:

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Christine ReyesSep 6, 2025
What does it mean if my Ferroli RXA-I PLUS Heat Pump displays 'The plate heat exchanger refrigerant outlet (gas pipe) temperature sensor (T2B ) error'?
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  Lisa NormanSep 6, 2025
  If your Ferroli Heat Pump displays 'The plate heat exchanger refrigerant outlet (gas pipe) temperature sensor (T2B ) error', it could be due to a few reasons. Check if the T2B sensor connector is loose and reconnect it. If the T2B sensor connector is wet or has water in it, remove the water, dry the connector, and apply waterproof adhesive. If the T2B sensor is faulty, replace it with a new sensor.
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Jared MccoyAug 23, 2025
What to do if my Ferroli RXA-I PLUS displays a flow switch error (E8)?
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  smithkimberlyAug 23, 2025
  If your Ferroli Heat Pump is displaying a flow switch error (E8), it could be due to a few reasons. First, check if the wire circuit is short-circuited or open and reconnect the wire correctly. Also, the water flow rate may be too low. Finally, the water flow switch might be failing, or opening and closing continuously, in that case change the water flow switch.
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Frank BrownAug 25, 2025
What causes high pressure protection in Ferroli RXA-I PLUS and how to fix it?
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  Brianna WeissAug 26, 2025
  High pressure protection in your Ferroli Heat Pump can be triggered by several factors: low water flow or high water temperature, or air in the water system, in this case release the air. If the water pressure is lower than 0.1Mpa, charge the water to let the pressure in the range of 0.15~0.2Mpa. If the refrigerant volume is overcharged, recharge the refrigerant to the correct volume. If the electrical expansion valve is locked or the winding connector is loose, tap the valve body and plug the connector in and out several times and install the winding correctly. Ensure the heat exchanger cover is removed. Clean the heat exchanger if it's dirty or blocked.
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David BruceAug 27, 2025
What does it mean when my Ferroli RXA-I PLUS shows 'Communication error between wired controller and unit'?
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  pstewartAug 27, 2025
  A communication error between the wired controller and the unit in your Ferroli Heat Pump can occur if the wire isn’t connected between them, so connect the wire. If the communication wire sequence is incorrect, reconnect the wire in the right sequence. Also, high magnetic fields or power interference from sources like lifts or large power transformers might be the cause. In this case, add a barrier to protect the unit or move it to another location.
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Vincent GrantAug 27, 2025
How to troubleshoot a phase sequence fault on a three-phase Ferroli RXA-I PLUS?
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  Tiffany MunozAug 27, 2025
  To troubleshoot a phase sequence fault on your three-phase Ferroli Heat Pump, first check that the power supply cables are connected stably to avoid phase loss. Also, check the power supply cables sequence and change any two cables sequence of the three power supply cables.
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Taylor GrantAug 28, 2025
What causes low pressure protection in Ferroli Heat Pump?
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  Robert JohnsonAug 28, 2025
  Low pressure protection in your Ferroli Heat Pump can be caused by several issues: the system lacking refrigerant volume, so charge the refrigerant to the correct volume. If you are at heating mode or heat water mode, the heat exchanger may be dirty or blocked, so clean the heat exchanger or remove any obstructions. If the electrical expansion valve is locked or the winding connector is loose, tap the valve body and plug in/plug off the connector for several times to ensure correct valve operation, and install the winding in the correct location.
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Andrea ObrienSep 12, 2025
What does it mean if my Ferroli RXA-I PLUS Heat Pump displays 'The indoor temperature sensor(Ta) error'?
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  Kathleen HernandezSep 12, 2025
  If your Ferroli Heat Pump displays 'The indoor temperature sensor(Ta) error', the Ta sensor might be in the interface. Also, the Ta sensor might be faulty, in that case change a new sensor or change a new interface.
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Ryan RoblesSep 14, 2025
What does it mean if my Ferroli RXA-I PLUS displays 'Pressure sensor failure Pe'?
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  alvarezlindaSep 14, 2025
  If your Ferroli Heat Pump displays 'Pressure sensor failure Pe', the pressure sensor connector might be loose, so reconnect it. Also, the pressure sensor might be faulty, in that case change a new sensor.
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Christopher McintyreSep 5, 2025
What does it mean if my Ferroli RXA-I PLUS Heat Pump displays 'The backup heater exchanger outlet water temperature sensor (T1) error'?
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  Alfred ElliottSep 5, 2025
  If your Ferroli Heat Pump displays 'The backup heater exchanger outlet water temperature sensor (T1) error', it could be due to a few reasons. Check if the T1 sensor connector is loose and reconnect it. If the T1 sensor connector is wet or has water in it, remove the water, dry the connector, and apply waterproof adhesive. If the T1 sensor is faulty, replace it with a new sensor.
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shane37Sep 2, 2025
What to do if my Ferroli Heat Pump displays 'The system outlet water temperature sensor T1B failure'?
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  bwashingtonSep 2, 2025
  If your Ferroli Heat Pump displays 'The system outlet water temperature sensor T1B failure', it could be due to a few reasons. Check if the T1B sensor connector is loose and reconnect it. If the T1B sensor connector is wet or has water in it, remove the water, dry the connector, and apply waterproof adhesive. If the T1B sensor is faulty, replace it with a new sensor.

Ferroli RXA-I PLUS Series Specifications

General

Type	Air-to-water heat pump
Refrigerant	R32
Energy Efficiency Class (Heating)	A+++
Energy Efficiency Class (Cooling)	A++
Max. Water Temperature	60°C
Power Supply	230V/1Ph/50Hz
Operating Mode	Heating/Cooling